GVM GVM-PRO-SD400B - User Manual

Questions and Answers

K
Kimberly PhelpsAug 16, 2025
What to do if the APP fails to connect to the network configuration of the GVM GVM-PRO-SD400B?
- B
  Brooke CortezAug 16, 2025
  If the APP fails to connect to the device's network configuration, verify that the device is turned on and hasn't been bound by another user. Also, check that your mobile phone's Bluetooth and network connections are stable. If issues persist, reset the device's Bluetooth, restart the App, and attempt the connection again.
D
Dan SnowAug 19, 2025
Why does the GVM GVM-PRO-SD400B Lighting Equipment APP fail to connect to the network configuration of the device?
- R
  Rebecca WheelerAug 19, 2025
  If the GVM Lighting Equipment APP fails to connect to the device's network configuration, ensure the device is turned on and not already connected to another account. Also, verify that your mobile phone's Bluetooth and network connections are stable. If issues persist, reset the device's Bluetooth, restart the app, and attempt the connection again.
M
Michelle TravisAug 22, 2025
What to do if clicking on the GVM Lighting Equipment in the APP cannot enter the control?
- J
  Joshua BuchananAug 22, 2025
  If you cannot control the device from the APP, first check if the device is online, indicated by a small green dot. If it's offline, try restarting the device, wait for 5 seconds until it shows as online, and then try controlling it again. Alternatively, reset the Bluetooth of the device and re-add it to the device list in the app.
A
Alejandro MooreAug 25, 2025
What to do if the GVM GVM-PRO-SD400B Lighting Equipment cannot be searched after being removed from the APP?
- E
  eosbornAug 26, 2025
  If the device cannot be searched after being removed from the APP, ensure the device is not offline or in network status. Try resetting the Bluetooth of the device, then search for it and add it again in the app.
P
Pamela StrongAug 27, 2025
Why the Bluetooth of GVM GVM-PRO-SD400B Lighting Equipment cannot be searched after the APP enters to add a device?
- A
  andrewperezAug 28, 2025
  If the device's Bluetooth cannot be found when adding a device in the APP, check that the device is powered on and not already connected to another account. To resolve this: 1. Ensure your phone has Bluetooth and network data enabled (Android may require location permissions). 2. Reset the device's Bluetooth.
C
Christopher AguilarAug 31, 2025
How to fix GVM GVM-PRO-SD400B if the switch indicator does not light up?
- S
  Sarah LarsonAug 31, 2025
  If the switch indicator isn't lighting up, ensure the adapter is securely connected to the power plug. If you're using a lithium battery, verify it's not in 'low battery' protection mode. If so, charge the battery before use.
C
Christine BernardSep 2, 2025
What to do if clicking on the device in the GVM GVM-PRO-SD400B APP cannot enter the control?
- M
  Michael ChristianSep 3, 2025
  If you can't enter the control panel by clicking on the device in the GVM Lighting Equipment APP, first, check if the device is online, indicated by a small green dot. If it's offline, restart the device and wait for 5 seconds until it shows as online. If this doesn't work, reset the Bluetooth of the device and re-add it to the device list.
L
Lindsay ObrienSep 6, 2025
How to fix a GVM GVM-PRO-SD400B when the switch indicator does not light up?
- L
  Laura HarrisSep 6, 2025
  If the switch indicator on your GVM Lighting Equipment doesn't light up, ensure the adapter is securely connected to the power plug. If you're using a lithium battery, check that it's not in 'low battery' protection mode. If it is, recharge the batteries before use.
M
Melissa DurhamSep 9, 2025
What to do if the device cannot be searched after being removed from the GVM Lighting Equipment APP?
- K
  Kathy LarsonSep 9, 2025
  If the device cannot be found on the GVM Lighting Equipment APP after being removed, it might be offline. If the connection is unstable when removing the device, reset the device's Bluetooth and then search for and re-add the device.
R
Ronald ColemanSep 12, 2025
Why the Bluetooth of the GVM GVM-PRO-SD400B Lighting Equipment device cannot be searched after the APP enters to add a device?
- S
  Sandra JohnsonSep 12, 2025
  If the Bluetooth of your GVM Lighting Equipment device cannot be found when the APP enters to add a device, check that the device is turned on and hasn't already been connected by someone else. To resolve this: 1. Ensure your mobile phone has Bluetooth and network data enabled. 2. For Android systems, enable location permissions. 3. Reset the device's Bluetooth.

The GVM-PRO-SD400B and GVM-PRO-SD500B are professional photography lights designed for senior photography enthusiasts. These products are suitable for live broadcasts, outdoor shooting, film production, studio photography, and YouTube video shooting.

Function Description

These lights feature high-definition COB beads that help restore and enrich object colors, providing natural and vivid shooting effects. They support APP control via iOS and Android smart mobile devices, utilizing Bluetooth Mesh networking for group control with other compatible GVM brand devices. A standard DMX interface allows for both low-precision 8-bit and high-precision 16-bit DMX control modes. The lights offer three primary lighting modes: CCT mode, light source matching mode, and light effect mode.

Important Technical Specifications

Model: GVM-PRO-SD400B

Brand: GVM
Product Name: Photography light
Product Type: Photography fill light
Function Control: Multiple light effect modes, high display index lamp beads
Control Mode: DMX, wireless remote control, light body control, APP Bluetooth MESH network control
Lumen: Bare light 14300 lux/1m; Plus standard cover 53200 lux/1m
Number of Lamp Beads: 1 (COB lamp beads)
Color Rendering Index: ≥97
Color Temperature: 2700K~6800K
Light Adjustment Method: Stepless adjustment
Product Net Weight: 5KG
Maximum Power: 400W
Power Supply Mode: AC & Battery (V-mount battery)
AC Input: 100V~240V
Product Size (mm): 436×150×265
Controller Size (mm): 136×133×335
Controller Net Weight: 2.6KG
Product Material: Aluminum alloy
Heat Dissipation: Heat sink + fan
Commodity Origin: Huizhou, China

Model: GVM-PRO-SD500B

Brand: GVM
Product Name: Photography light
Product Type: Photography fill light
Function Control: Multiple light effect modes, high display index lamp beads
Control Mode: DMX, wireless remote control, light body control, APP Bluetooth MESH network control
Lumen: Bare light 16800lux/1m; Plus standard cover 61600lux/1m
Number of Lamp Beads: 1 (COB lamp beads)
Color Rendering Index: ≥97
Color Temperature: 2700K~6800K
Light Adjustment Method: Stepless adjustment
Product Net Weight: 5KG
Maximum Power: 500W
Power Supply Mode: AC & Battery (V-mount battery)
AC Input: 100V~240V
Product Size (mm): 436×150×265
Controller Size (mm): 136×133×335
Controller Net Weight: 2.6KG
Product Material: Aluminum alloy
Heat Dissipation: Heat sink + fan
Commodity Origin: Huizhou, China

Usage Features

Installation:

Light Stand Installation: Loosen the light stand fixing knob, install the light onto the light stand, and then tighten the knob.
Angle Adjustment: Loosen the angle locking handle, adjust the spotlight's angle, and then tighten the handle.
Standard Cover Attachment: Insert the standard cover into the Bowens bayonet socket and turn it clockwise. To remove, pull outward and rotate counterclockwise.
Controller Installation: Install the controller fixing clip onto the light stand, then attach the controller to the clip.
Connection: Use the control wire to connect the light and the controller.
Power Supply:
- Use the AC power cord for direct power.
- Alternatively, use two V-mount batteries (batteries must be inserted into both slots; power is halved when using batteries).

Control Keys:

Display: Shows current settings, modes, and parameters.
Mode Key: Switches between light modes.
Menu Key: Enters the settings menu.
Return Key: Returns to the previous menu level.
Cooling Key: Activates large air volume cooling until the temperature is touchable.
Knob ① (INT/SELECTOR): Multi-functional coding knob for "Select/Brightness" adjustment by pressing or rotating.
Knob ② (CCT/SPD): Adjusts color temperature and light effect change rate by rotating.
Power ON/OFF Button: Turns the device on or off.

Menu Functions:

DMX Settings: Configure DMX parameters (address 001-512) and mode (8bit/16bit).
Dim Curve: Set dimming curve (linear, logarithmic, exponential, S curve).
WL Settings: Adjust RF channel, RF switch, Bluetooth switch, and Bluetooth reset.
Studio Mode:
- Studio Mode: Restores memory brightness value after power off and on.
- Non-Studio Mode: Restores default factory brightness value after power off and on.
Frequency Settings: Set the dimming frequency.
Fan Settings: Choose cooling fan mode (Smart, High, Silent).
Language: Set system language (English, Simplified Chinese).
System Settings: View system information and restore factory settings.

Lighting Modes:

CCT Mode: Adjustable light intensity and color temperature. Knob ① adjusts brightness, Knob ② adjusts color temperature.
Light Source Mode: Provides 12 different light sources. Rotate and short press the SELECTOR key to choose the desired effect.
Light Effect Mode: Offers 12 light effects (lightning, CCT cycle, candle, bad bulb, TV, paparazzi, explosion, breathing light, strobe, flame, firework, welding). Rotate and short press the SELECTOR button to choose the desired effect.

APP Control:

Download: Scan the QR code on the manual's back or download from Google Play/Huawei Store (Android) or App Store (iOS).
Register: Register with an email address. Check spam if verification code is delayed.
Add Devices:
- Ensure Bluetooth and network data are on, and reset the device's Bluetooth.
- Click "Add Device" in the "My Devices" page, select the nearby Bluetooth device, and connect.
- Android devices require location permission for Mesh technology, but no location information is collected.
Device Management: After adding, the device appears in "My Devices." Click the device bar to enter its control interface.

Maintenance Features

General Use and Preservation:

Avoid high humidity, strong electromagnetic fields, high temperatures, or direct sunlight.
Disconnect power if not used for a long time.
Cleaning: Unplug power before cleaning. Use a dry, soft cloth; avoid detergents or soluble liquids.
Power: Ensure power supply is within the specified range to prevent performance issues.
Repairing: Do not attempt to disassemble the product. Contact the manufacturer or authorized repair personnel for faults or performance degradation.
Accessories: Use only manufacturer-provided and approved accessories.
Warranty: Modifying the product will invalidate the warranty.

Important Safety Instructions:

This is professional equipment; use by or under the guidance of a professional.
Read the manual carefully.
Operate within -20°C to 45°C.
Keep away from flammable solvents.
Ensure the device cools completely before storage. Store in its carrying case or a well-ventilated, dry place.
Not for general illumination; avoid direct eye contact, especially for individuals with eye injuries or sensitivity.
Children are prohibited from using it; supervise them closely if near the equipment.
Remove the protective cover before use.
Do not stare directly at the light source when on. Seek medical attention if discomfort occurs.
Handle carefully when on to avoid burns from high-temperature components.
Do not use damaged equipment or accessories; have them inspected by a professional.
Stop use and contact the manufacturer if the light source is damaged or deformed by heat.
Stop use if the product is cracked due to falling, squeezing, or strong impact to avoid electric shock.
Do not disassemble the product; repairs must be done by authorized personnel.
Unplug the power supply before cleaning or maintenance by pulling the plug, not the cable.
Operate only with earthed power outlets or emergency power generators.
Do not wipe with a wet cloth.
Use extension cords with adequate capacity to prevent overheating.
Place power cords properly to avoid damage or tripping hazards. Use original power cords.
Do not use non-recommended accessories.
If using batteries, use only specified types and keep them out of reach of children. If a battery leaks, changes color, deforms, smokes, or emits an odor, remove it carefully to avoid burns. Do not use deformed/modified batteries, heat, solder, or subject them to strong external force. Insert batteries correctly; do not mix old/new or different types.
For built-in lithium batteries, use a dedicated charger according to instructions.

Warranty:

One-year warranty. Consumables (batteries, adapters, power cords, etc.) are not covered.
Private repairs invalidate the warranty, incurring repair costs.
Malfunctions from non-standard operations are not covered.
Design and specifications may change without notice; check the official website for updates.

Troubleshooting:

Switch indicator not lighting: Check lamp-power supply connection and battery charge (if using).
APP cannot find device: Ensure phone's Bluetooth/network data are on, location permission (Android) is granted, and reset device Bluetooth.
APP fails to connect: Check device power, previous binding, phone's Bluetooth/network connection, and reset device Bluetooth/restart app.
Device not found after removal from APP: Check if device is offline, remove if connection is bad, then reset device Bluetooth and re-add.
Clicking device in APP doesn't enter control: Check if device is online (green dot), restart device, wait 5 seconds, or reset device Bluetooth and re-add.